Tetrahydrophthalic anhydride is a downstream product of maleic anhydride. It is a new organic anhydride epoxy resin curing agent with excellent performance, which is used for alkyd resin and unsaturated resin, and can improve the adhesion, elasticity, gloss and water resistance of coatings. As a plasticizer, it can improve the cold resistance and heat resistance of PVC, and is non-toxic. It is widely used in electronic and electrical industry, aerospace field. At the same time, the product is also the raw material of synthetic surfactants and pharmaceutical pesticide products
